Programmer team
Hold L + R and press B, B, X on controller D at the 
"Black Box" logo. The phrase "Oh Black Box Baby" will 
be spoken to confirm correct code entry. All the players 
except for the goalies will have big heads. 
From Joe Kool.
 
Big head mode
Hold L + R and press B, A, B, Y on controller D at the 
"Black Box" logo. The phrase "Oh Black Box Baby" will be 
spoken to confirm correct code entry. All the players
except for the goalies will have big heads. 
From Joe Kool.
 
Wayne Gretzkey message
Create a player and enter Wayne Gretzkey as a name. The message 
"Thanks For The Memories" will appear over the player picture 
section. 
From Joe Kool.
 
Ron Hextall picture 
Create a player and enter "Ron Hextall" as a name to see his 
picture in the "Edit Lines" menu.
From Joe Kool. 

Tony Twist picture
Create a player and enter Tony Twist as a name to see his 
picture in the "Edit Lines" menu. 
From Joe Kool.  

Dale Hunter picture
Create a player and enter Dale Hunter as a name to see his 
picture in the "Edit Lines" menu. 
From Joe Kool. 

Other players
Create a player and enter any person that retired during 
the 1998-1999 season to see his picture at the 
"Edit Lines" menu.
From Joe Kool. 

Marty Reasoner picture
Create a player and enter Marty Reasoner as a name to see 
his picture in the "Edit Lines" menu. 
From Joe Kool. 

Programmer pictures
Create a player and enter any of the names from the development 
team that are listed in the instruction manual. The picture of 
the corresponding person will appear in the "Edit Lines" menu. 
From Joe Kool.